update release tasks

diff --git a/release-tasks b/release-tasks
index 667ab31fdf01ce20e77c1c79c162287d4e55a9bb..35556897227afadbc23b3cf5a532149fdca15953 100644 (file)
--- a/release-tasks
+++ b/release-tasks
@@ -198,7 +198,7 @@ Contributors for 9.1: (updated 2019-05-12)
 
 
 0b/ Check for doxygen formatting problems by running contrib/utilities/checkdoxygen.py:
-      find doc examples include -name "*.h" -o -name "*.dox" -print | xargs -n 1 ./contrib/utilities/checkdoxygen.py
+      find doc examples include \( -name "*.h" -o -name "*.dox" \) -print | xargs -n 1 ./contrib/utilities/checkdoxygen.py
 +
     and push the corresponding changes